What is the current water temperature in Fukuoka?

Q: What is the current water temperature in Fukuoka?

As of now, in Fukuoka, the water temperature is 19.11°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

Japan > Fukuoka

Water temperature in Fukuoka

Detailed information about the current water temperature in Fukuoka. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

66.4

°F

May 8, 15:12

Trend:

increasing

Yesterday:

66.2°F

Tomorrow:

66.4°F

Sunrise:

05:24

Sunset:

19:06

Day Length:

13 h. 42 min.

Fukuoka in May

Minimum:

57.4°F

Average:

58.8°F

Maximum:

61.1°F

Sea water temperature in Fukuoka today

As of now, in Fukuoka, the water temperature is 66.4°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.2°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 66.3°F on 2024, while the historical minimum was 62.9°F on 2025.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 66.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Fukuoka

Date	Current Year actual* / forecast**	last year	10 years average
Apr 24	62.0°F	60.7°F	61.1°F
Apr 25	62.0°F	60.9°F	61.3°F
Apr 26	62.4°F	61.5°F	61.5°F
Apr 27	62.2°F	61.6°F	61.4°F
Apr 28	62.2°F	61.7°F	61.6°F
Apr 29	62.2°F	61.1°F	62.0°F
Apr 30	62.0°F	62.1°F	62.1°F
May 1	63.2°F	63.0°F	62.6°F
May 2	63.3°F	62.7°F	62.7°F
May 3	63.8°F	61.4°F	62.7°F
May 4	63.3°F	61.8°F	63.1°F
May 5	62.7°F	61.9°F	63.3°F
May 6	64.1°F	62.3°F	63.6°F
May 7	66.2°F	62.6°F	64.0°F
May 8	66.4°F	62.9°F	64.2°F
May 9	66.4°F	63.1°F	64.2°F
May 10	66.6°F	63.3°F	64.4°F
May 11	66.3°F	62.9°F	64.1°F
May 12	66.8°F	63.5°F	64.7°F
May 13	66.7°F	63.5°F	64.5°F
May 14	66.8°F	63.7°F	64.6°F
May 15	67.1°F	64.2°F	64.9°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Fukuoka by month

In Fukuoka, the months July through October offer comfortable swimming conditions, which amounts to 112 swimming days.

The warmest water in Fukuoka was recorded on August 4, 2024, reaching a 88.2°F. While the coldest temperature occurred on March 10, 2025, dipping to 51.7°F. The average readings by season are 58.5°F in Winter, 60.2°F in Spring, 77.8°F in Summer, and 73.5°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kitakyushu	65.2°F	30mi
Shimonoseki	64.1°F	39mi
Kumamoto	66.7°F	57mi
Nagasaki	65.7°F	66mi

* current water temperature in this city

** straight line distance from Fukuoka